Add a "Spoiler" To Your Posts
This will allow you to post a spoiler.

What is a spoiler? A spoiler is a "secret" area that you can use in your posts to keep things like movie endings from showing up visibly and ruining it for those who do not want to know the ending while allowing others to see it easily.

All you need to do is put this between spoiler tags like you would any other BBcode.

[spoiler]your text in here[/spoiler]